Re: [TLS] SRP ?

Rick van Rein <rick@openfortress.nl> Wed, 24 February 2016 21:59 UTC

Return-Path: <rick@openfortress.nl>
X-Original-To: tls@ietfa.amsl.com
Delivered-To: tls@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C823F1B3180 for <tls@ietfa.amsl.com>; Wed, 24 Feb 2016 13:59:54 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -0.702
X-Spam-Level:
X-Spam-Status: No, score=-0.702 tagged_above=-999 required=5 tests=[BAYES_40=-0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id iPhrAFg1Wnvb for <tls@ietfa.amsl.com>; Wed, 24 Feb 2016 13:59:52 -0800 (PST)
Received: from lb3-smtp-cloud2.xs4all.net (lb3-smtp-cloud2.xs4all.net [194.109.24.29]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 405E81B310E for <tls@ietf.org>; Wed, 24 Feb 2016 13:59:52 -0800 (PST)
Received: from airhead.local ([83.161.146.46]) by smtp-cloud2.xs4all.net with ESMTP id NMzn1s00L10HQrX01MzoAt; Wed, 24 Feb 2016 22:59:50 +0100
Message-ID: <56CE27D1.7060002@openfortress.nl>
Date: Wed, 24 Feb 2016 22:59:45 +0100
From: Rick van Rein <rick@openfortress.nl>
User-Agent: Postbox 3.0.11 (Macintosh/20140602)
MIME-Version: 1.0
To: Aaron Zauner <azet@azet.org>
References: <30c15e55fd524e8bbba814f4898c3f95@ustx2ex-dag1mb1.msg.corp.akamai.com> <248E1E7C-72CB-4A20-B1E3-8CA051560FAC@azet.org>
In-Reply-To: <248E1E7C-72CB-4A20-B1E3-8CA051560FAC@azet.org>
X-Enigmail-Version: 1.2.3
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: 7bit
Archived-At: <http://mailarchive.ietf.org/arch/msg/tls/XWADssFhwiJi5_BQzpVQCldhl0Y>
Cc: "tls@ietf.org" <tls@ietf.org>
Subject: Re: [TLS] SRP ?
X-BeenThere: tls@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: "This is the mailing list for the Transport Layer Security working group of the IETF." <tls.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/tls>, <mailto:tls-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/tls/>
List-Post: <mailto:tls@ietf.org>
List-Help: <mailto:tls-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/tls>, <mailto:tls-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 24 Feb 2016 21:59:55 -0000

Hi,

> Although the lack of modern cipher-suites for SRP makes it not very
> attractive these days.
>
Does anyone know if work on something like "ECSRP" is going on, anywhere?

We've recently worked on getting it working with PKCS #11,

https://github.com/arpa2/srp-pkcs11
https://github.com/arpa2/srp-pkcs11/blob/rfc5054_compat/doc/design/srp-pkcs11.pdf

It could be interesting to see if this translates to the Elliptic Curve
arena.

I heard rumours of alternatives being weighed against one another, but
failed to find anything concrete.  Links are quite welcome!

-Rick